JQE_IEEE_Abhishek_MP_Alok.doc (434.5 kB)
Download fileElectrically tunable guided mode resonance grating for switchable photoluminescence
preprint
posted on 2021-12-09, 22:10 authored by Alok GhanekarAlok Ghanekar, Abhishek Mukherjee, Michelle PovinelliWe present a guided mode resonance grating based on the incorporation of an electro-optic material with monolayer WS2. The grating is designed to exhibit highly selective directional photo-luminescent emission. We study the effect of doubling the grating period via the introduction of an alternating index perturbation. Using numerical simulations, we show that period doubling leads to formation of a photonic band gap and spectral splitting in the absorptivity (or emissivity) spectrum. We anticipate that this effect can either be used to switch on and off the emissivity at a fixed wavelength, or toggle between single- and double-wavelength emission.
Funding
Indo-US Science and Technology Forum (IUSSTF) Viterbi program.
History
Email Address of Submitting Author
aghaneka@usc.eduORCID of Submitting Author
0000-0002-8181-481XSubmitting Author's Institution
University of Southern CaliforniaSubmitting Author's Country
- United States of America